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3b7d0e7a62
This makes for more useful errors. It prints where it was up to in the guide, but doesn't print the entire JSON it's scanning. Suggested-by: Christian Decker Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
218 lines
10 KiB
C
218 lines
10 KiB
C
#include "../json.c"
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#include <assert.h>
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#include <ccan/mem/mem.h>
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#include <ccan/tal/str/str.h>
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#include <common/amount.h>
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#include <common/json.h>
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#include <common/setup.h>
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#include <common/utils.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <wire/wire.h>
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/* AUTOGENERATED MOCKS START */
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/* Generated stub for amount_asset_is_main */
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bool amount_asset_is_main(struct amount_asset *asset UNNEEDED)
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{ fprintf(stderr, "amount_asset_is_main called!\n"); abort(); }
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/* Generated stub for amount_asset_to_sat */
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struct amount_sat amount_asset_to_sat(struct amount_asset *asset UNNEEDED)
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{ fprintf(stderr, "amount_asset_to_sat called!\n"); abort(); }
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/* Generated stub for amount_sat */
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struct amount_sat amount_sat(u64 satoshis UNNEEDED)
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{ fprintf(stderr, "amount_sat called!\n"); abort(); }
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/* Generated stub for amount_sat_add */
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bool amount_sat_add(struct amount_sat *val UNNEEDED,
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struct amount_sat a UNNEEDED,
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struct amount_sat b UNNEEDED)
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{ fprintf(stderr, "amount_sat_add called!\n"); abort(); }
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/* Generated stub for amount_sat_eq */
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bool amount_sat_eq(struct amount_sat a UNNEEDED, struct amount_sat b UNNEEDED)
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{ fprintf(stderr, "amount_sat_eq called!\n"); abort(); }
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/* Generated stub for amount_sat_greater_eq */
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bool amount_sat_greater_eq(struct amount_sat a UNNEEDED, struct amount_sat b UNNEEDED)
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{ fprintf(stderr, "amount_sat_greater_eq called!\n"); abort(); }
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/* Generated stub for amount_sat_sub */
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bool amount_sat_sub(struct amount_sat *val UNNEEDED,
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struct amount_sat a UNNEEDED,
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struct amount_sat b UNNEEDED)
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{ fprintf(stderr, "amount_sat_sub called!\n"); abort(); }
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/* Generated stub for amount_sat_to_asset */
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struct amount_asset amount_sat_to_asset(struct amount_sat *sat UNNEEDED, const u8 *asset UNNEEDED)
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{ fprintf(stderr, "amount_sat_to_asset called!\n"); abort(); }
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/* Generated stub for amount_tx_fee */
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struct amount_sat amount_tx_fee(u32 fee_per_kw UNNEEDED, size_t weight UNNEEDED)
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{ fprintf(stderr, "amount_tx_fee called!\n"); abort(); }
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/* Generated stub for fromwire */
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const u8 *fromwire(const u8 **cursor UNNEEDED, size_t *max UNNEEDED, void *copy UNNEEDED, size_t n UNNEEDED)
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{ fprintf(stderr, "fromwire called!\n"); abort(); }
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/* Generated stub for fromwire_amount_sat */
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struct amount_sat fromwire_amount_sat(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
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{ fprintf(stderr, "fromwire_amount_sat called!\n"); abort(); }
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/* Generated stub for fromwire_bool */
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bool fromwire_bool(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
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{ fprintf(stderr, "fromwire_bool called!\n"); abort(); }
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/* Generated stub for fromwire_fail */
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void *fromwire_fail(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
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{ fprintf(stderr, "fromwire_fail called!\n"); abort(); }
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/* Generated stub for fromwire_secp256k1_ecdsa_signature */
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void fromwire_secp256k1_ecdsa_signature(const u8 **cursor UNNEEDED, size_t *max UNNEEDED,
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secp256k1_ecdsa_signature *signature UNNEEDED)
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{ fprintf(stderr, "fromwire_secp256k1_ecdsa_signature called!\n"); abort(); }
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/* Generated stub for fromwire_sha256 */
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void fromwire_sha256(const u8 **cursor UNNEEDED, size_t *max UNNEEDED, struct sha256 *sha256 UNNEEDED)
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{ fprintf(stderr, "fromwire_sha256 called!\n"); abort(); }
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/* Generated stub for fromwire_tal_arrn */
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u8 *fromwire_tal_arrn(const tal_t *ctx UNNEEDED,
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const u8 **cursor UNNEEDED, size_t *max UNNEEDED, size_t num UNNEEDED)
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{ fprintf(stderr, "fromwire_tal_arrn called!\n"); abort(); }
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/* Generated stub for fromwire_u16 */
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u16 fromwire_u16(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
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{ fprintf(stderr, "fromwire_u16 called!\n"); abort(); }
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/* Generated stub for fromwire_u32 */
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u32 fromwire_u32(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
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{ fprintf(stderr, "fromwire_u32 called!\n"); abort(); }
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/* Generated stub for fromwire_u64 */
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u64 fromwire_u64(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
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{ fprintf(stderr, "fromwire_u64 called!\n"); abort(); }
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/* Generated stub for fromwire_u8 */
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u8 fromwire_u8(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
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{ fprintf(stderr, "fromwire_u8 called!\n"); abort(); }
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/* Generated stub for fromwire_u8_array */
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void fromwire_u8_array(const u8 **cursor UNNEEDED, size_t *max UNNEEDED, u8 *arr UNNEEDED, size_t num UNNEEDED)
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{ fprintf(stderr, "fromwire_u8_array called!\n"); abort(); }
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/* Generated stub for json_add_member */
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void json_add_member(struct json_stream *js UNNEEDED,
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const char *fieldname UNNEEDED,
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bool quote UNNEEDED,
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const char *fmt UNNEEDED, ...)
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{ fprintf(stderr, "json_add_member called!\n"); abort(); }
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/* Generated stub for json_member_direct */
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char *json_member_direct(struct json_stream *js UNNEEDED,
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const char *fieldname UNNEEDED, size_t extra UNNEEDED)
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{ fprintf(stderr, "json_member_direct called!\n"); abort(); }
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/* Generated stub for towire */
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void towire(u8 **pptr UNNEEDED, const void *data UNNEEDED, size_t len UNNEEDED)
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{ fprintf(stderr, "towire called!\n"); abort(); }
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/* Generated stub for towire_amount_sat */
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void towire_amount_sat(u8 **pptr UNNEEDED, const struct amount_sat sat UNNEEDED)
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{ fprintf(stderr, "towire_amount_sat called!\n"); abort(); }
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/* Generated stub for towire_bool */
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void towire_bool(u8 **pptr UNNEEDED, bool v UNNEEDED)
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{ fprintf(stderr, "towire_bool called!\n"); abort(); }
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/* Generated stub for towire_secp256k1_ecdsa_signature */
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void towire_secp256k1_ecdsa_signature(u8 **pptr UNNEEDED,
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const secp256k1_ecdsa_signature *signature UNNEEDED)
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{ fprintf(stderr, "towire_secp256k1_ecdsa_signature called!\n"); abort(); }
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/* Generated stub for towire_sha256 */
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void towire_sha256(u8 **pptr UNNEEDED, const struct sha256 *sha256 UNNEEDED)
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{ fprintf(stderr, "towire_sha256 called!\n"); abort(); }
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/* Generated stub for towire_u16 */
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void towire_u16(u8 **pptr UNNEEDED, u16 v UNNEEDED)
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{ fprintf(stderr, "towire_u16 called!\n"); abort(); }
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/* Generated stub for towire_u32 */
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void towire_u32(u8 **pptr UNNEEDED, u32 v UNNEEDED)
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{ fprintf(stderr, "towire_u32 called!\n"); abort(); }
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/* Generated stub for towire_u64 */
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void towire_u64(u8 **pptr UNNEEDED, u64 v UNNEEDED)
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{ fprintf(stderr, "towire_u64 called!\n"); abort(); }
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/* Generated stub for towire_u8 */
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void towire_u8(u8 **pptr UNNEEDED, u8 v UNNEEDED)
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{ fprintf(stderr, "towire_u8 called!\n"); abort(); }
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/* Generated stub for towire_u8_array */
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void towire_u8_array(u8 **pptr UNNEEDED, const u8 *arr UNNEEDED, size_t num UNNEEDED)
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{ fprintf(stderr, "towire_u8_array called!\n"); abort(); }
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/* AUTOGENERATED MOCKS END */
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static bool json_to_tok(const char *buffer, const jsmntok_t *tok,
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const jsmntok_t **t)
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{
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*t = tok;
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return true;
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}
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int main(int argc, char *argv[])
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{
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const jsmntok_t *toks, *t;
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char *buf;
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char *s;
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u32 u32val;
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u8 *hex;
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const char *err;
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common_setup(argv[0]);
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buf = tal_strdup(tmpctx, "{\"1\":\"one\", \"2\":\"two\", \"3\":{\"three\": {\"deeper\": 17}}, \"arr\": [{\"1\": \"arrone\"}, 2, [3, 4]]}");
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toks = json_parse_simple(tmpctx, buf, strlen(buf));
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assert(toks);
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assert(toks->size == 4);
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/* These are direct matches, and they work. */
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assert(!json_scan(tmpctx, buf, toks, "{1:one}"));
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assert(!json_scan(tmpctx, buf, toks, "{1:one,2:two}"));
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assert(!json_scan(tmpctx, buf, toks, "{2:two,1:one}"));
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assert(!json_scan(tmpctx, buf, toks, "{2:two,1:one,3:{three:{deeper:17}}}"));
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assert(!json_scan(tmpctx, buf, toks, "{2:two,1:one,3:{three:{deeper:17}},arr:[0:{1:arrone}]}"));
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assert(!json_scan(tmpctx, buf, toks, "{2:two,1:one,3:{three:{deeper:17}},arr:[1:2]}"));
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assert(!json_scan(tmpctx, buf, toks, "{2:two,1:one,3:{three:{deeper:17}},arr:[1:2,2:[0:3,1:4]]}"));
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/* These do not match */
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err = json_scan(tmpctx, buf, toks, "{2:one}");
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assert(streq(err, "Parsing '{2:one': \"two\" does not match expected one"));
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err = json_scan(tmpctx, buf, toks, "{1:one,2:tw}");
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assert(streq(err, "Parsing '{1:one,2:tw': \"two\" does not match expected tw"));
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err = json_scan(tmpctx, buf, toks, "{1:one,2:twoo}");
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assert(streq(err, "Parsing '{1:one,2:twoo': \"two\" does not match expected twoo"));
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err = json_scan(tmpctx, buf, toks, "{4:one}");
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assert(streq(err, "Parsing '{4:': object does not have member 4"));
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err = json_scan(tmpctx, buf, toks, "{2:two,1:one,3:three}");
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assert(streq(err, "Parsing '{2:two,1:one,3:three': {\"three\": {\"deeper\": 17}} does not match expected three"));
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err = json_scan(tmpctx, buf, toks, "{3:{three:deeper}}");
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assert(streq(err, "Parsing '{3:{three:deeper': {\"deeper\": 17} does not match expected deeper"));
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err = json_scan(tmpctx, buf, toks, "{3:{three:{deeper:{}}}}");
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assert(streq(err, "Parsing '{3:{three:{deeper:{': token is not an object: 17"));
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err = json_scan(tmpctx, buf, toks, "{arr:{}}");
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assert(streq(err, "Parsing '{arr:{': token is not an object: [{\"1\": \"arrone\"}, 2, [3, 4]]"));
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err = json_scan(tmpctx, buf, toks, "{arr:[0:1]}");
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assert(streq(err, "Parsing '{arr:[0:1': {\"1\": \"arrone\"} does not match expected 1"));
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err = json_scan(tmpctx, buf, toks, "{arr:[4:0]}");
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assert(streq(err, "Parsing '{arr:[4:': token has no index 4: [{\"1\": \"arrone\"}, 2, [3, 4]]"));
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err = json_scan(tmpctx, buf, toks, "{arr:[0:{1:arrtwo}]}");
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assert(streq(err, "Parsing '{arr:[0:{1:arrtwo': \"arrone\" does not match expected arrtwo"));
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err = json_scan(tmpctx, buf, toks, "{arr:[1:3]}");
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assert(streq(err, "Parsing '{arr:[1:3': 2 does not match expected 3"));
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err = json_scan(tmpctx, buf, toks, "{arr:[2:[0:1]]}");
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assert(streq(err, "Parsing '{arr:[2:[0:1': 3 does not match expected 1"));
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/* These capture simple values. */
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assert(!json_scan(tmpctx, buf, toks, "{3:{three:{deeper:%}}}",
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JSON_SCAN(json_to_number, &u32val)));
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assert(u32val == 17);
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err = json_scan(tmpctx, buf, toks, "{1:%}",
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JSON_SCAN(json_to_number, &u32val));
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assert(streq(err, "Parsing '{1:%': json_to_number could not parse \"one\""));
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assert(!json_scan(tmpctx, buf, toks, "{1:%}",
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JSON_SCAN_TAL(tmpctx, json_strdup, &s)));
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assert(tal_parent(s) == tmpctx);
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assert(streq(s, "one"));
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err = json_scan(tmpctx, buf, toks, "{1:%}",
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JSON_SCAN_TAL(tmpctx, json_tok_bin_from_hex, &hex));
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assert(streq(err, "Parsing '{1:%': json_tok_bin_from_hex could not parse \"one\""));
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assert(!json_scan(tmpctx, buf, toks, "{3:%}", JSON_SCAN(json_to_tok, &t)));
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assert(t == &toks[6]);
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assert(!json_scan(tmpctx, buf, toks, "{arr:%}", JSON_SCAN(json_to_tok, &t)));
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assert(t == &toks[12]);
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assert(!json_scan(tmpctx, buf, toks, "{arr:[1:%]}",
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JSON_SCAN(json_to_number, &u32val)));
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assert(u32val == 2);
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assert(!json_scan(tmpctx, buf, toks, "{arr:[2:[1:%]]}",
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JSON_SCAN(json_to_number, &u32val)));
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assert(u32val == 4);
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common_shutdown();
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}
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